Part V Firearm and Explosive Injuries Mechanical Injury Part VI Transportation Injuries Mechanical Injury Part VII Craniocerebral Injury

I. Reading skill II. Fast reading III. Structure of the text IV. Important Words V. Detailed study of Text VI. Exercises

I. Reading skill II. Fast reading. III. Structure of the text. IV. Important Words V. Detailed study of Text VI. Exercises

I. Background Information II. Pre-reading Activities III. Text Analysis– Structure IV. Intensive reading V. Writing skill VI. Exercises

I,Background Information II.Pre-reading Activities TII.Text Analysis-Structure IV.Intensive reading V.Writing skill VI.Exercises

I.Background Information ll.Pre-reading Activities lll.Text Analysis-Structure IV.Intensive reading V.Writing skill VI.Exercises

I.Background Information II.Pre-reading Activities III.Text Analysis-Structure IV.Intensive Reading V.Writing Skill VI.Exercises

I. Reading skill II. Fast reading. III. Structure of the text. IV. Important Words V. Detailed study of Text VI. Exercises

以溴代十六烷基吡啶改性沸石为吸附分离材料,研究了其对水中Cr(Ⅵ)去除率的影响和吸附等温线以及吸附机理.结果表明,在改性沸石粒度为0.25~0.38mm、用量30g·L-1、溶液pH=6、25℃的条件下振荡吸附30min,水中Cr(Ⅵ)的去除率达到93%以上.改性沸石对水中Cr(VI)的吸附符合Langmuir等温吸附线,对Cr(Ⅵ)的饱和吸附量每100g改性沸石达到36.78mg.X射线衍射分析表明,改性沸石结构中吸附了溴代十六烷基吡啶分子基团C21H38NBr,红外光谱分析证明正是这一基团造成了改性沸石对水中Cr(Ⅵ)的吸附去除

8.10 Signal transduction and two-component regulatory system VI. Differences between prokaryotes and eukaryotes in gene expression V. RNA-Based Regulation 8.11 RNA Regulation and Antisense RNA 8.12 Riboswitches 8.13 Attenuation 弱化作用